What is the main limitation of gear pumps when used for pesticide application?

The main limitation of gear pumps when used for pesticide application is that they can be easily damaged by abrasive formulations. Gear pumps operate with close tolerances, which makes them susceptible to wear when handling materials that contain solid particles or abrasive substances. Pesticide formulations often contain various additives, including fillers or other components that can be abrasive, leading to premature wear and reduced efficiency of the pump.

In contrast to some other pumping systems designed for handling various types of liquids, gear pumps are not as robust against the damaging effects of these abrasives. This can result in increased maintenance costs and pump failures, ultimately affecting the application process and potentially impacting the efficacy of the pesticides being applied.